Effects of toxorhynchites amboinensis on laboratory-reared Aedes aegypti populations (Diptera: Culicidae)

Castner, J.L.; Bailey, D.L.

Journal of Medical Entomology 21(2): 132-136


ISSN/ISBN: 0022-2585
PMID: 6144797
DOI: 10.1093/jmedent/21.2.132
Accession: 001191039

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The immediate and long-term effects of predation by Toxorhynchites amboinensis (Doleschall) on laboratory-reared populations of Aedes aegypti (L.) were tested in the laboratory in Florida. The Aedes populations were maintained by periodic addition of first-instar larvae. Significant reduction in adult emergence of A. aegypti was not observed until the 2nd week after the introduction of the predators. The degree of control obtained in the 2nd and 3rd week after introduction was proportional to the number of predators originally introduced. The addition of 1 predator/week gave better control during the 4th week than did a single introduction of 1-2 predators.